Double blind study of hydroxyzine, promethazine, secobarbital, and a placebo for preanaesthetic medication.
D000328:Adult; D000368:Aged; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D006919:Hydroxyzine / Q000494:pharmacology*; D008297:Male; D008875:Middle Aged; D010919:Placebos; D011229:Preanesthetic Medication; D011398:Promethazine / Q000494:pharmacology*; D012631:Secobarbital / Q000494:pharmacology*
D010919:Placebos; D012631:Secobarbital; D006919:Hydroxyzine; D011398:Promethazine